diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b17231..a3e1b83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ All notable changes to this project will be documented in this file.
 This project is at an early development stage. **Expect breaking changes without prior notice before v1.0.0**.
 Everything after v1.0.0 will follow [Semantic Versioning](https://semver.org/).
 
+## [0.6.5] - 2019-02-03
+- Add stylelint linter
+
 ## [0.6.4] - 2019-02-03
 - Change dark theme colors
 
diff --git a/lib/terminal.css b/lib/terminal.css
index 4c6e024..70535a3 100644
--- a/lib/terminal.css
+++ b/lib/terminal.css
@@ -218,6 +218,7 @@ pre code {
 
 .terminal-prompt {
   position: relative;
+  white-space: nowrap;
 }
 
 .terminal-prompt::before {
@@ -403,20 +404,10 @@ ol.terminal-toc li a:hover {
 
 hr {
   position: relative;
-  height: calc(var(--global-space) * 2);
   overflow: hidden;
+  margin: calc(var(--global-space) * 4) 0;
   border: 0;
-  margin: calc(var(--global-space) * 2) 0;
-}
-
-hr::after {
-  content: "--------------------------------------------------------------------------------------------------------------------";
-  position: absolute;
-  top: 0;
-  left: 0;
-  line-height: calc(var(--global-space) * 2);
-  width: 100%;
-  word-wrap: break-word;
+  border-bottom: 1px dashed var(--secondary-color);
 }
 
 p {
diff --git a/package.json b/package.json
index 757bab3..6fd662b 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "build": "node ./scripts/build.js && node ./scripts/copyFiles.js",
     "test": "echo \"Error: no test specified\" && exit 1",
     "lint": "stylelint lib/terminal.css",
+    "preversion": "npm run lint",
     "prepublish": "npm run build"
   },
   "repository": {